Declension table of ?ṛbhvan

Neuter	Singular	Dual	Plural
Nominative	ṛbhva	ṛbhvṇī ṛbhvaṇī	ṛbhvāṇi
Vocative	ṛbhvan ṛbhva	ṛbhvṇī ṛbhvaṇī	ṛbhvāṇi
Accusative	ṛbhva	ṛbhvṇī ṛbhvaṇī	ṛbhvāṇi
Instrumental	ṛbhvaṇā	ṛbhvabhyām	ṛbhvabhiḥ
Dative	ṛbhvaṇe	ṛbhvabhyām	ṛbhvabhyaḥ
Ablative	ṛbhvaṇaḥ	ṛbhvabhyām	ṛbhvabhyaḥ
Genitive	ṛbhvaṇaḥ	ṛbhvaṇoḥ	ṛbhvaṇām
Locative	ṛbhvaṇi	ṛbhvaṇoḥ	ṛbhvasu

Compound ṛbhva -

Adverb -ṛbhva -ṛbhvam